Vehicle Emergency Call Arbitration System
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Solution Overview
Problem
Current emergency call systems in vehicles often face challenges in ensuring continuous connectivity and efficient emergency response, particularly in situations where vehicle power is lost or communication devices are unavailable, leading to potential disruptions in emergency call processes.
Innovation Solution
A vehicle communication system that includes a computer processor, persistent and non-persistent memory, and a local wireless transceiver, capable of initiating emergency calls even when vehicle power is lost, by using a backup power circuit and automatically connecting to available communication devices, ensuring continuous emergency call functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle power is lost during an emergency, then the primary communication system fails, but emergency call functionality must be maintained
Solution Approach 1:
The system performs preliminary actions by pre-configuring backup communication devices and establishing their availability before a power loss emergency occurs. The backup devices are pre-positioned and the system pre-establishes communication protocols, enabling immediate switchover when power is lost without requiring real-time decision-making under pressure.
Solution Approach 2:
The system introduces intermediary backup communication devices that can take over the communication function when the primary system fails due to power loss. These intermediary devices act as mediators between the failed primary system and the emergency response, ensuring continuous communication capability through alternative power sources or communication channels.
2Reliability
If the system continuously monitors communication device availability, then connectivity reliability improves, but system complexity increases
Solution Approach 1:
The system implements self-service by automatically detecting communication device availability and autonomously switching between primary and backup devices without external intervention. The system self-monitors its own communication status and self-corrects by activating backup devices when failures occur, reducing the need for complex external control mechanisms.
Solution Approach 2:
The system uses feedback mechanisms to continuously monitor communication device status and adjust its operation accordingly. By receiving real-time feedback on device availability and connection quality, the system can dynamically switch between devices to maintain reliable communication, though this does require some monitoring infrastructure.
3Reliability
If the system automatically switches to backup devices, then emergency call continuity is maintained, but response time may increase
Solution Approach 1:
The system performs preliminary actions by pre-configuring and pre-positioning backup communication devices and their communication protocols before a failure occurs. This pre-preparation eliminates the need for real-time configuration during the emergency, enabling instant switchover when the primary device fails, thus minimizing any perceived response time delay.
Solution Approach 2:
The system applies beforehand cushioning by having backup communication capabilities already in place and ready to activate immediately. This cushioning against potential failures ensures that when a primary device fails, the backup is already prepared and can take over without introducing significant time delays, as all necessary configurations are pre-established.
Data Source
AI summary
A method of call arbitration includes connecting a vehicle computing system to a remote phone system. The vehicle computing system is used to transmit a pre-recorded or dynamically generated message to the remote phone system. The vehicle computing system also receives an outgoing message spoken in the vehicle to the remote phone system. The pre-recorded or dynamically generated message and the outgoing message are combined into a first signal for relay to the remote phone system as a single message. The vehicle computing system receives an incoming spoken message from the remote phone system. Finally, the received incoming message and the pre-recorded or dynamically generated message are combined into a second signal for playback as a single message through a vehicle audio system.